best pitcher winning percentage season all-time

Tim Keefe has the best ERA in a season, with an ERA of 0.86 in his rookie season in 1880.

Showing:

Regular season
1+ innings pitched per team game

	NAME	ERA	W%	SEASON	TM	W	L	G	GS	SO	CG	SHO	SV	IP	H	ER	R	HR	BB	HBP	GF	IBB	TBF	WP	K/9	BB/9	K/BB	HR/9	K%	BB%	WHIP	BABIP	RA	ERA-	FIP	FIP-	H/9	PRAA
1	Tim Keefe T. Keefe	0.86	.500	1880	TRO	6	6	12	12	39	12	0	0	105.0	68	10	27	0	16		0		397	1	3.34	1.37	2.44	0.00	9.8	4.0	0.80		2.31	35	2.25	91	5.83	3.6
2	Dutch Leonard D. Leonard	0.96	.792	1914	BSA	19	5	36	25	176	17	7	3	224.2	139	24	34	3	60	8	8		842	2	7.05	2.40	2.93	0.12	20.9	7.1	0.89	.229	1.36	36	1.95	70	5.57	20.4
3	Dan Casey D. Casey	1.00	.500	1884	WIL	1	1	2	2	10	2	0	0	18.0	23	2	17	0	4		0		83	0	5.00	2.00	2.50	0.00	12.0	4.8	1.50		8.50	32	2.83	104	11.50	-0.1
4	Ed Cushman E. Cushman	1.00	1.000	1884	MIL	4	0	4	4	47	4	2	0	36.0	10	4	4	0	3		0		125	1	11.75	0.75	15.67	0.00	37.6	2.4	0.36		1.00	8	0.91	8	2.50	17.4
5	Mordecai Brown M. Brown	1.04	.813	1906	CHC	26	6	36	32	144	27	9	3	277.1	198	32	56	1	61	4	4		1,044	2	4.67	1.98	2.36	0.03	13.8	5.8	0.93	.236	1.82	39	2.08	75	6.43	21.1
6	Bob Gibson B. Gibson	1.12	.710	1968	STL	22	9	34	34	268	28	13	0	304.2	198	38	49	11	62	7	0	6	1,161	4	7.92	1.83	4.32	0.32	23.1	5.3	0.85	.230	1.45	38	1.77	63	5.85	34.8
7	Christy Mathewson C. Mathewson	1.14	.806	1909	NYG	25	6	37	33	149	26	8	2	275.1	192	35	57	2	36	0	4		998	4	4.87	1.18	4.14	0.07	14.9	3.6	0.83	.234	1.86	44	1.62	61	6.28	31.7
8	Walter Johnson W. Johnson	1.14	.837	1913	WSH	36	7	48	36	243	29	11	2	346.0	232	44	56	9	38	9	10		1,271	2	6.32	0.99	6.39	0.23	19.1	3.0	0.78	.229	1.46	39	1.90	63	6.03	42.3
9	Jack Pfiester J. Pfiester	1.15	.609	1907	CHC	14	9	30	22	90	13	3	0	195.0	143	25	61	1	48	5	5		745	2	4.15	2.22	1.88	0.05	12.1	6.4	0.98	.236	2.82	47	2.14	81	6.60	10.6
10	Addie Joss A. Joss	1.16	.686	1908	CLE	24	11	42	35	130	29	9	2	325.0	232	42	77	2	30	2	6		1,209	6	3.60	0.83	4.33	0.06	10.8	2.5	0.81	.220	2.13	49	1.68	76	6.42	19.3
11	Carl Lundgren C. Lundgren	1.17	.720	1907	CHC	18	7	28	25	84	21	7	0	207.0	130	27	42	0	92	2	3		795	2	3.65	4.00	0.91	0.00	10.6	11.6	1.07	.211	1.83	48	2.73	104	5.65	-2.3
12	Denny Driscoll D. Driscoll	1.21	.591	1882	PIT	13	9	23	23	59	23	0	0	201.0	162	27	73	0	12		0		799	7	2.64	0.54	4.92	0.00	7.4	1.5	0.87		3.27	45	2.36	84	7.25	10.2
13	Grover Alexander G. Alexander	1.22	.756	1915	PHN	31	10	49	42	241	36	12	3	376.1	253	51	86	3	64	10	7		1,435	2	5.76	1.53	3.77	0.07	16.8	4.5	0.84	.224	2.06	43	1.82	63	6.05	44.1
14	George Bradley G. Bradley	1.23	.703	1876	STL	45	19	64	64	103	63	16	0	573.0	470	78	229	3	38		0		2,269	34	1.62	0.60	2.71	0.05	4.5	1.7	0.89		3.60	58	2.14	101	7.38	-20.7
15	Cy Young C. Young	1.26	.656	1908	BOS	21	11	36	33	150	30	3	2	299.0	230	42	68	1	37	1	3		1,116	4	4.52	1.11	4.05	0.03	13.4	3.3	0.89	.247	2.05	52	1.52	67	6.92	25.4
16	Ed Walsh E. Walsh	1.27	.474	1910	CWS	18	20	45	36	258	33	7	5	369.2	242	52	87	5	61	4	7		1,359	6	6.28	1.49	4.23	0.12	19.0	4.5	0.82	.230	2.12	52	1.63	66	5.89	34.8
17	Walter Johnson W. Johnson	1.27	.639	1918	WSH	23	13	39	29	162	29	8	3	326.0	241	46	71	2	70	8	10		1,261	8	4.47	1.93	2.31	0.06	12.8	5.6	0.95	.235	1.96	47	2.04	74	6.65	25.9
18	Christy Mathewson C. Mathewson	1.28	.775	1905	NYG	31	9	43	37	206	32	8	3	338.2	252	48	85	4	64	1	6		1,294	6	5.47	1.70	3.22	0.11	15.9	4.9	0.93	.243	2.26	42	2.03	69	6.70	34.9
19	Jack Taylor J. Taylor	1.29	.676	1902	CHO	23	11	37	34	88	34	8	1	333.2	273	48	86	2	45	12	3		1,278	10	2.37	1.21	1.96	0.05	6.9	3.5	0.95	.240	2.32	49	2.73	98	7.36	0.6
20	Guy Hecker G. Hecker	1.30	.500	1882	LOU	6	6	13	11	33	10	0	0	104.0	75	15	49	0	5		1		403	7	2.86	0.43	6.60	0.00	8.2	1.2	0.77		4.24	49	2.27	82	6.49	5.1
21	Jack Coombs J. Coombs	1.30	.775	1910	PHA	31	9	45	38	224	35	13	1	353.0	248	51	74	0	115	7	6		1,353	10	5.71	2.93	1.95	0.00	16.6	8.5	1.03	.246	1.89	53	2.09	83	6.32	15.8
22	Mordecai Brown M. Brown	1.31	.750	1909	CHC	27	9	50	34	172	32	8	7	342.2	246	50	78	1	53	7	15		1,280	9	4.52	1.39	3.25	0.03	13.4	4.1	0.87	.234	2.05	51	1.78	68	6.46	32.4
23	Walter Johnson W. Johnson	1.36	.595	1910	WSH	25	17	45	42	313	38	8	1	370.0	262	56	92	1	76	13	3		1,367	21	7.61	1.85	4.12	0.02	22.9	5.6	0.91	.271	2.24	56	1.39	56	6.37	45.2
24	George Bradley G. Bradley	1.38	.619	1880	PRO	13	8	28	20	54	16	4	2	196.0	158	30	66	2	6		7		757	7	2.48	0.28	9.00	0.09	7.1	0.8	0.84		3.03	60	2.21	96	7.26	0.6
25	Old Hoss Radbourn O. Hoss Radbourn	1.38	.831	1884	PRO	59	12	75	73	441	73	11	2	678.2	528	104	216	18	98		2		2,672	34	5.85	1.30	4.50	0.24	16.5	3.7	0.92		2.86	48	2.75	84	7.00	31.9

Unlock 2x data

More MLB News

Gavin Sheets' pinch-hit homer propels dominant Padres past Cubs 4-1 for 2-game Wild Card sweep

Oct 1, 2026

Red Sox ace Sonny Gray frustrated by lack of trust from manager during Yankees rout

Oct 1, 2026

Fried, Bellinger and García lead Yankees over Red Sox 9-2 for 2-game Wild Card Series sweep

Oct 1, 2026

Bohm's homer in 10th lifts Phillies over Braves to force decisive Game 3

Oct 1, 2026

White Sox pounce early, finish sweep of Astros for first playoff series win since 2005

Oct 1, 2026

Padres' Ethan Salas becomes MLB's youngest postseason catcher in Game 2 vs. Cubs

Sep 30, 2026

MLB 2026 Batting Leaders

Playoffs HR Leaders

2

Rice

1

Peña

1

Montgomery

Playoffs RBI Leaders

6

Rice

4

Wells

4

Bellinger

Playoffs Batting Average Leaders

1.000

Doyle

1.000

Taylor

1.000

Sheets

Playoffs Hit Leaders

5

Rice

4

Merrill

4

Harris

Playoffs Run Leaders

3

Rice

3

Tatis

3

Lombard

Playoffs OBP Leaders

1.000

Doyle

1.000

Taylor

1.000

Sheets

Playoffs SLG Leaders

4.000

Sheets

1.333

Rice

1.333

Velázquez

Playoffs SB Leaders

2

Chisholm

2

Acuña

2

Acuña

MLB 2026 Pitching Leaders

Playoffs Win Leaders

1

Schlittler

1

King

1

Fried

Playoffs Strikeout Leaders

10

Schlittler

9

Sale

8

Burke

Playoffs ERA Leaders

0.00

Schlittler

0.00

Miller

0.00

King

Playoffs WHIP Leaders

0.00

Chapman

0.00

VanWey

0.00

Matsui

Playoffs K/9 Leaders

27.00

Brown

27.00

Chapman

27.00

King

Playoffs K/BB Leaders

10.00

Schlittler

9.00

Sale

7.00

Abreu

Playoffs Walk Leaders

0

Warren

0

Miller

0

Burke

MLB Fantasy 2026

Playoffs FanDuel Points Leaders

69.6

Rice

59

Schlittler

55

King

Playoffs DraftKings Points Leaders

51

Rice

36.5

Schlittler

33.4

King

MLB 2026 Betting

Best Record ATS

95-69

94-70

91-71

88-74

87-75

85-76

Worst Record ATS

60-102

69-95

69-93

75-87

76-88

MLB 2026 Standings

NL East	W	L	PCT	GB
Braves - y	94	68	.580
Phillies - w	88	74	.543	6.0
Marlins	80	82	.494	14.0
Nationals	77	85	.475	17.0
Mets	74	88	.457	20.0
NL Central	W	L	PCT	GB
Brewers - y	103	59	.636
Cubs - w	89	73	.549	14.0
Pirates	82	80	.506	21.0
Cardinals	77	85	.475	26.0
Reds	75	87	.463	28.0
NL West	W	L	PCT	GB
Dodgers - y	100	62	.617
Padres - w	91	71	.562	9.0
Diamondbacks	86	76	.531	14.0
Giants	65	97	.401	35.0
Rockies	58	104	.358	42.0

AL East	W	L	PCT	GB
Rays - y	98	64	.605
Yankees - w	93	68	.578	4.5
Red Sox - w	87	75	.537	11.0
Orioles	79	82	.491	18.5
Blue Jays	79	83	.488	19.0
AL Central	W	L	PCT	GB
Guardians - y	85	77	.525
White Sox - w	84	78	.519	1.0
Twins	77	85	.475	8.0
Tigers	76	86	.469	9.0
Royals	69	93	.426	16.0
AL West	W	L	PCT	GB
Astros - y	81	81	.500
Rangers	80	82	.494	1.0
Mariners	76	86	.469	5.0
Athletics	64	98	.395	17.0
Angels	62	100	.383	19.0